This week's questions

How does the power steering of a motor car work ?

C. George Varghese, Thrissur, Kerala

Why does daily use of shampoo lead to discolouring of hair irrespective of the person's age?

Dilna D.,

Kozhikode, Kerala

Why does the Sun appear small during noon and at the same time give more heat? Normally during evening we are further away from the Sun but it looks bigger. Why?

V. Nagarajan,

Bangalore

Why does it take a long time for a meal to get digested when a banana istaken prior to the meal?

Muhammed Shameem N., Malappuram, Kerala .